Mesmer Support (and other combos and know-how for group fights)

So, since the Mesmer has a variety of fields and tactics, I'm posting this to help people better use those fields when they are up and also have a thread where other class-skills for support can be explicit too.

So, for the Mesmer, there are five fields that this will cover: Temporal Curtain, Chaos Storm, Feedback, Null field, and Time Warp
All except for Time Warp have a medium-sized circle and Time Warp covers a large-area. Temporal Curtain is a linear Field.

Chaos Storm : The interior of the circle has lightning effects that help to identify it. Standing within this circle gives three kinds of boons as well as conditions to enemies. These conditions and buffs focus mainly on crippling the enemy and shoring up the defense of allies (aegis, swiftness, and retaliation).

Feedback : This field looks like a disco ball of sorts. Any of the edges of this field reflect back projectiles to the enemy. So, if one keeps the field between oneself and the enemy then it will grant cover from ranged fire. (Note: some projectiles that arc can go over the field, and some penetrate it. Ie: the Ballistae in the Battlefield Fractal ignore this field)

Null Field : This field's perimeter pulses with shards aligned vertically. It can usually remove conditions fairly quickly, but it does not remove them all at once. It also removes boons from enemies that are in it.

Time Warp : This Field has a misty outer ring and a large area. This field gives Quickness and the field lasts for about 10 seconds. This can be used to quickly revive someone within the field or unleash skills and abilities with faster speed and recharge. Note: Quickness does not affect skills and revives that began before the boon was applied.

Temporal Curtain : This field is a shimmering line graphic. With a talent it can also function to reflect projectiles.

Combo Notes: All of the fields, with the exception to Temporal Curtain, are Ethereal Fields. For the ethereal field the most notable combos to use are Leap and Blast. Leap grants the user Chaos Armor and Blast grants it to the user and nearby allies. This armor is great for defense as well as reducing the enemies' damage output.

Another notable Staff skill is Winds of Chaos . The attack can bounce twice (with a third bounce with a Talent). This bounce will go to the nearest ally, so those who have talents that benefit from critical hits can optimize upon the Fury that this skill has.

Please share any other important skills that other classes have for team fights in this thread as well!